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* Skip empty DWARF code range when mapping linesLudovic Guegan2018-11-211-3/+6
| | | | | | | | BUG=777 Change-Id: Ic6d05eee3ff4660b6d087999a8cea04a1ee3e92b Reviewed-on: https://chromium-review.googlesource.com/c/1333507 Reviewed-by: Ted Mielczarek <ted.mielczarek@gmail.com>
* Conditionally define BPLOG_IFJoshua Peraza2018-10-121-0/+2
| | | | | | | | This allows BPLOG_IF to be overriden by defines in BP_LOGGING_INCLUDE. Change-Id: Ic6e8373476cc4d1f73d55e13a23686a2c8309fdc Reviewed-on: https://chromium-review.googlesource.com/c/1278104 Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
* Adds method to get the date of the most recent iOS crash report.Evan Bernstein2018-10-084-0/+63
| | | | | | | | Also adds method to determine if breakpad is started. Change-Id: I272765e7ac6bbc07d77ca2d8dcc34d51c205116e Reviewed-on: https://chromium-review.googlesource.com/c/1260625 Reviewed-by: Joshua Peraza <jperaza@chromium.org>
* Swap MDCVInfoELF::cv_signature if needed.Lei Zhang2018-08-281-1/+5
| | | | | | | | BUG=chromium:877888 Change-Id: Ie4437228dfc32619ce5feb1769ba1644a4ea8ca2 Reviewed-on: https://chromium-review.googlesource.com/1192963 Reviewed-by: Joshua Peraza <jperaza@chromium.org>
* win: fix formatting after 21c98747Joshua Peraza2018-08-271-1/+1
| | | | | | Change-Id: If50c3563fec7a8a9edf05c22f7d157201184df38 Reviewed-on: https://chromium-review.googlesource.com/1191671 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* win: replace a while loop with a for loopJoshua Peraza2018-08-271-1/+1
| | | | | | | | | This is the recommended resolution to warning C4127. https://msdn.microsoft.com/en-us/library/6t66728h.aspx Change-Id: Ifcffe68e21d9a6383bb9aef07503cbb034caca19 Reviewed-on: https://chromium-review.googlesource.com/1191661 Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
* Fix debug build after 16e0852Joshua Peraza2018-08-182-7/+6
| | | | | | | | Also remove ranges_handler_ which is unused. Change-Id: I771bf4b5fc4410f0406bf26e1e405905b55389ab Reviewed-on: https://chromium-review.googlesource.com/1180587 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Make a parameter a const referenceJoshua Peraza2018-08-171-1/+1
| | | | | | Change-Id: I7d232dd9be3a03b5bd9f1d46c307d080fadf9116 Reviewed-on: https://chromium-review.googlesource.com/1179978 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Treat high_pc as an address for DW_FORM_GNU_addr_indexJoshua Peraza2018-08-171-1/+2
| | | | | | | | | | The high_pc is an address and has already been read from .debug_addr before being passed into FuncHandler::ProcessAttributeUnsigned. Bug:870908 Change-Id: I950098e360b5193f26bf767b8fa0a5f9d59e66ce Reviewed-on: https://chromium-review.googlesource.com/1178760 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Fix Windows client_tests GYP build after 88d8114fda3eMark Mentovai2018-08-151-0/+1
| | | | | | | | Bug: google-breakpad:770 Change-Id: I5539cda6053c39a11c354fba7f3e689ae02d3019 Reviewed-on: https://chromium-review.googlesource.com/1176126 Reviewed-by: Joshua Peraza <jperaza@chromium.org> Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Fixed a typo introduced in revision 16e08520e6027df4bf1934abbfd5e1a088ffb69cGabriele Svelto2018-08-141-1/+1
| | | | | | | | BUG=769 Change-Id: I1e118fe31b4a4031275b8b49c4c1eb98745ce21a Reviewed-on: https://chromium-review.googlesource.com/1174571 Reviewed-by: Ted Mielczarek <ted.mielczarek@gmail.com>
* Add support for parsing the DW_AT_ranges attributesGabriele Svelto2018-08-1317-111/+577
| | | | | | | | | | | | | | | | This enables the DWARF reader to properly parse DW_AT_ranges attributes in compilation units and functions. Code covered by a function is now represented by a vector of ranges instead of a single contiguous range and DW_AT_ranges entries are used to populate it. All the code and tests that assumed functions to be contiguous entities has been updated to reflect the change. DW_AT_ranges attributes found in compilation units are parsed but no data is generated for them as it is not currently needed. BUG=754 Change-Id: I310391b525aaba0dd329f1e3187486f2e0c6d442 Reviewed-on: https://chromium-review.googlesource.com/1124721 Reviewed-by: Ted Mielczarek <ted.mielczarek@gmail.com>
* Set new ARM64 context flagsJoshua Peraza2018-08-061-9/+1
| | | | | | Change-Id: I4749459ec37b076b226fa734824380a7254f1064 Reviewed-on: https://chromium-review.googlesource.com/1163826 Reviewed-by: Mark Mentovai <mark@chromium.org>
* processor: Fix memory leak after 88d8114fJoshua Peraza2018-08-021-0/+4
| | | | | | | | | This was mistakenly deleted in https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1155938/12 Change-Id: I95e5d84b36e2f89a7a364ee278ccb128b7d34b50 Reviewed-on: https://chromium-review.googlesource.com/1159525 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Define and use a a new MDRawContextARM64Joshua Peraza2018-08-0119-51/+325
| | | | | | | | | | | This struct matches the layout defined by Microsoft and replaces Breakpad's MDRawContextARM64_Old. This CL updates the processor to understand either the old or new structs, but clients continue to write the old structs. Change-Id: I8dedd9ddb2ec083b802723b9ac87beb18d98edbd Reviewed-on: https://chromium-review.googlesource.com/1155938 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Rename MDRawContextARM64 and its context flagsJoshua Peraza2018-08-0120-71/+71
| | | | | | | | | | This makes way for the addition of a struct matching Microsoft's layout for ARM64. Change-Id: I115f25290863e7438852691d1ec3c9324a42f7a5 Reviewed-on: https://chromium-review.googlesource.com/1152158 Reviewed-by: Mark Mentovai <mark@chromium.org> Reviewed-by: Mike Frysinger <vapier@chromium.org>
* mac: Fix broken xcode projectsJoshua Peraza2018-07-313-162/+169
| | | | | | Change-Id: I1cd8f0b0224c9b629dda720c11f6c081b175f8bd Reviewed-on: https://chromium-review.googlesource.com/1157121 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Add path_helper.cc and path_helper.h to dump_syms.xcodeproj.Ivan Penkov2018-07-241-0/+6
| | | | | | | | | | | Fixes a build break of dump_syms with Xcode. Patch provided by Hiroyuki Komatsu. Change-Id: I3bd3772060afee9f78dc99c75cd94f96a56c7617 Reviewed-on: https://chromium-review.googlesource.com/1144604 Reviewed-by: Joshua Peraza <jperaza@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
* ios: Fix build of exception_handler_no_machJoshua Peraza2018-07-091-1/+1
| | | | | | Change-Id: I2a9f85e78f6d3189f018824ad98e39af30d2ecf8 Reviewed-on: https://chromium-review.googlesource.com/1129465 Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
* Use hash_map and hash_set from __gnu_cxxJoshua Peraza2018-07-091-2/+2
| | | | | | Change-Id: Ia8521e5cfd8424c5dec247503532454eb8806c48 Reviewed-on: https://chromium-review.googlesource.com/1129203 Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
* iOS: disable using CFI in stackwalkingJoshua Peraza2018-07-062-6/+15
| | | | | | | | | | | dump_syms produces incomplete CFI info on iOS because it doesn't support converting compact unwind to Breakpad symbols. Attempting to use incomplete CFI can result in infinte stack traces. Bug: google-breakpad:764 Change-Id: Id042aa515d17928cb5503a79038607d95c56238d Reviewed-on: https://chromium-review.googlesource.com/1128252 Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
* Ignore duplicate module list entries.Lei Zhang2018-06-281-0/+16
| | | | | | | | BUG=chromium:838322 Change-Id: Ie19c1a39e49332b650a618758f925b127026bddf Reviewed-on: https://chromium-review.googlesource.com/1115437 Reviewed-by: Joshua Peraza <jperaza@chromium.org>
* Only do Android-specific adjustments for Android minidumps.Lei Zhang2018-06-282-5/+10
| | | | | | Change-Id: I33b1f988766f79b473127c4b56b1c81021b89631 Reviewed-on: https://chromium-review.googlesource.com/1115436 Reviewed-by: Joshua Peraza <jperaza@chromium.org>
* Refactor code out of MinidumpModuleList::Read().Lei Zhang2018-06-282-48/+60
| | | | | | | | Add a StoreRange() helper method and an IsDevAshmem() helper function. Change-Id: Iaec9dee1e08bd0155f1c33cfe9af722b0dcaef31 Reviewed-on: https://chromium-review.googlesource.com/1114188 Reviewed-by: Joshua Peraza <jperaza@chromium.org>
* Add an anonymous namespace in minidump.cc.Lei Zhang2018-06-281-41/+32
| | | | | | Change-Id: I1b064013b5d6253fe887245ebda7a861688d3cd6 Reviewed-on: https://chromium-review.googlesource.com/1114089 Reviewed-by: Will Harris <wfh@chromium.org>
* Fall back to the raw symbol name from DW_AT_MIPS_linkage_name when there is ↵Mike Hommey2018-06-191-0/+7
| | | | | | | | | | | | | | | | nothing else When DW_AT_MIPS_linkage_name doesn't demangle, breakpad currently throws the symbol completely, but in some cases, there is no DW_AT_name or DW_AT_abstract_origin to figure out a name, and the raw value from DW_AT_MIPS_linkage_name is still better than nothing. Fall back to that in when there is nothing else. R=ted@mielczarek.org Change-Id: I5cc7580244f2b99f5f1f279d09b904031cae1a37 Reviewed-on: https://chromium-review.googlesource.com/1082176 Reviewed-by: Ted Mielczarek <ted.mielczarek@gmail.com>
* Avoid endl when writing symbol filesAaron Dierking2018-05-301-9/+8
| | | | | | | | | | endl flushes output after each line. Using "\n" instead significantly improves I/O efficiency. Change-Id: If6a5549fc3613ca3a7c9a71838ec36c5b7a20580 Reviewed-on: https://chromium-review.googlesource.com/1077626 Reviewed-by: Ivan Penkov <ivanpe@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
* Add SEVERITY_CRITICAL to logging, that would help to suppress logs from the ↵Max Moroz2018-05-292-1/+14
| | | | | | | | | | | fuzz target. Follow-up CL will be https://chromium-review.googlesource.com/c/chromium/src/+/1073395 Bug: 846721 Change-Id: Ie9e6dc5c5ef6b035c414fbdc4f711f995b52f4d7 Reviewed-on: https://chromium-review.googlesource.com/1073394 Reviewed-by: Will Harris <wfh@chromium.org>
* Read Linux si_code in minidump_processor.Lei Zhang2018-04-132-4/+143
| | | | | | | | For common signals: SIGILL, SIGFPE, SIGSEGV, and SIGBUS. Change-Id: I80048f70445c3fa6accd548704c5700b3bed12a4 Reviewed-on: https://chromium-review.googlesource.com/1012589 Reviewed-by: Robert Sesek <rsesek@chromium.org>
* Initialize variables for MSANSergey Abbakumov2018-04-102-2/+2
| | | | | | | | | | The variables in the CL are not initialized. Even if it's safe not to initialize them here, MSAN doesn't know that. Bug: 394028 Change-Id: I597a7d76aa19d5789decd0f85150fa31c9655269 Reviewed-on: https://chromium-review.googlesource.com/1001573 Reviewed-by: Lei Zhang <thestig@chromium.org>
* Linux: Write out si_code for SIGBUS exceptions.Lei Zhang2018-04-035-11/+26
| | | | | | | | | Store the information in the exception record's exception_information field. Change-Id: Ie215cae2f070fdab63c3d05cc1bc4fb4b7b095fa Reviewed-on: https://chromium-review.googlesource.com/990799 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Add missing header for free functionTakuto Ikuta2018-03-271-0/+1
| | | | | | Change-Id: I8ff2dcb546849493f2883777895341e043e44fb3 Reviewed-on: https://chromium-review.googlesource.com/981965 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Allow minidump_dump to print module lists that would normally be rejectedTed Mielczarek2018-03-121-0/+3
| | | | | | | | | | | | | | | | | for being too long. We've seen some minidumps that fail to process because they contain a ridiculous number of modules (usually due to something leaking shm mappings, it looks like). They're annoying to investigate because even minidump_dump fails to load and print the module list. This patch makes minidump_dump effectively remove the limit on the number of modules it will load, so inspecting the dump by hand is possible. R=vapier@chromium.org Change-Id: I7a55387ca4aaad8664cd4d2651052da989366027 Reviewed-on: https://chromium-review.googlesource.com/957130 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Fixing incorrect include guard (missing #define)Daniel Bratell2018-02-231-0/+1
| | | | | | | | | Noticed while adding an include guard presubmit check in Chromium. Change-Id: I9e677412d881b32a58d695208045b575bb8f8be6 Reviewed-on: https://chromium-review.googlesource.com/934448 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Fix crash when an NSException is thrown.Adam Harrison2018-02-022-11/+10
| | | | | | | | old_handlers is zeroish whenever an NSException is thrown. This caused PROT_WRITE to never be set and resulted in an EXC_BAD_ACCESS when trying to set the handler to NULL. Change-Id: Ibb7da448204431c7602b1001f3a5216303c4c9d1 Reviewed-on: https://chromium-review.googlesource.com/899907 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Extend ifdef to include helper functionsLars Volker2018-01-311-2/+2
| | | | | | | | | | The previous change to fix compiling on Android < N forgot to include a helper in the ifdef, thus not fixing the problem. This change extends the ifdef to include all helpers used by the test. Change-Id: Ibb3030f54a81b5609a0b55ccef387a3cba22d088 Reviewed-on: https://chromium-review.googlesource.com/895240 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Remove barrier to fix Android build.Lars Volker2018-01-311-1/+3
| | | | | | | | | | | The unittest for #752 made use of pthread_barrier_t, which is not supported on Android. This change replaces the barrier code with a simple sleep, which proved sufficient to trigger the race. It only affects the test and does not affect the original fix for #752. Change-Id: I82c32cf00899176fa09089e716ed85850b8711e6 Reviewed-on: https://chromium-review.googlesource.com/895168 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Make breakpad build with -Wimplicit-fallthrough (on linux)Nico Weber2018-01-312-1/+19
| | | | | | | | | | | Fixes a bug where MD_EXCEPTION_CODE_MAC_PPC_ALTIVEC_ASSIST would unintentionally get two reason strings appended. Bug: 177475 Change-Id: I4957268328a242c7c75bbff8add98e9a48ba83ad Reviewed-on: https://chromium-review.googlesource.com/895705 Reviewed-by: Mike Frysinger <vapier@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
* Do not use non-standard stdext::checked_array_iterator with libc++.Peter Collingbourne2018-01-181-1/+1
| | | | | | | Bug: chromium:801780 Change-Id: Id1b0b2330d7d609bda62869bcda5bb2f6fde12bd Reviewed-on: https://chromium-review.googlesource.com/872458 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Only restore the signal handler if sigaction has not changedLars Volker2018-01-092-0/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Restoring the signal handler in ExceptionHandler::SignalHandler() can lead to a race in scenarios where multiple threads crash within a short time. This can cause threads to alternately try to write a minidump without ever terminating the process. The first thread to write a minidump will reset the signal handler to the SIG_DFL using signal() in InstallDefaultHandler(). The next thread to execute SignalHandler() will detect this and will reset the signal handler to SignalHandler(). If the first thread takes too long to write its minidump (e.g. when there are many threads), the chances increase that the second thread will enter SignalHandler() before the first one leaves the critical section. After resetting the signal handler, the second thread will fail to write a minidump (since the file already exists) and will try to reset the signal handler to the default by calling RestoreHandlersLocked(). However, in the meantime the first thread will have entered SignalHandler() again and will overwrite it one more time. After that, no further attempts will be made to restore the default signal handler and both threads will continue to re-raise the signal and attempt to write minidump files. This change adds a check to make sure that cur_handler.sa_sigaction is still pointing to SignalHandler() before re-installing the handler. To test this we start a large number of sleeping threads and two threads that will crash simultaneously. Without the fix, this would reproducibly lead to a loop between the two crashing threads. Bug: 752 Change-Id: I784328cfff17ddc7476d6668354570ab867ba405 Reviewed-on: https://chromium-review.googlesource.com/855137 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Fixed file extention for minidump_upload in tools_linux.gypiSyed Nisar Ul Haq2018-01-041-1/+1
| | | | | | | | Bug: Change-Id: I02ceca2ff7cb87bb2b8f0cf02d31f9ab6d46a8da src/tools/linux/tools_linux.gypi was using 'symupload/minidump_upload.m' whereas it should have been 'symupload/minidump_upload.cc' for linux. '.m' is for mac. Reviewed-on: https://chromium-review.googlesource.com/840622 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Add asm and machine headersbsheedy2018-01-035-7/+525
| | | | | | | | | | | Adds asm/ and machine/ directories to src/common/android/include. This is necessary because some required files for MIPS were removed in newer Android NDK versions, which broke Breakpad compilation. Bug: 771171 Change-Id: Ie6a079b6b8130b549ebc6d0bc4aef0e47e7bd6c2 Reviewed-on: https://chromium-review.googlesource.com/835282 Reviewed-by: Mark Mentovai <mark@chromium.org>
* android: drop sgidefs.h hack for LSSMike Frysinger2017-12-232-42/+0
| | | | | | | | | | | Breakpad shouldn't be hacking up headers for LSS. This was eventually fixed in LSS directly in https://codereview.chromium.org/1248033002, so we can drop this hack on our side. Change-Id: Iff29efe7f6af40835e0aab1f6ac3fd8d167045ef Reviewed-on: https://chromium-review.googlesource.com/843124 Reviewed-by: Mark Seaborn <mseaborn@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
* Fix minidump on ChromeOSYunlian Jiang2017-12-201-8/+25
| | | | | | | | | | | | | Chrome somehow changed the memory mapping with hugepage enabled. This makes the hack in CrOSPostProcessMappings more general. BUG=chromium:793452 TEST=with this patch on Chromium, minidump_dump *dmp shows the right information on chrome Change-Id: Iff58bf1a712a6e66cbd2d813422db7549a3080a5 Reviewed-on: https://chromium-review.googlesource.com/837963 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Reconcile -[BreakpadController withBreakpadRef:] with its documentation.Robert Sesek2017-12-151-3/+1
| | | | | | | | | | The header states that if the controller is not -start:'ed that it will call the block with a NULL BreakpadRef. As previously implemented, it asserted if it was not started. Change-Id: I3a329a773c0484dc1b74013717b68426758ea2cd Reviewed-on: https://chromium-review.googlesource.com/829834 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Update binaries with dump_syms changes to write new fieldMike Wittman2017-12-122-0/+0
| | | | | | | | | | Incorporates the changes in https://chromium.googlesource.com/breakpad/breakpad/+/897a12cd26ad01a5ef19474f23cfd0fbff4ea5a7 Bug: google-breakpad:751 Change-Id: I8c6de8c0477c0b1e6d7a65551ecb116c95e1a696 Reviewed-on: https://chromium-review.googlesource.com/820567 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Write field indicating multiple symbols at an address in dump_symsMike Wittman2017-12-118-31/+12
| | | | | | | | | | | Updates dump_syms to write the optional 'm' first field in FUNCTION and PUBLIC records to indicate that the address corresponds to more than one symbol. Bug: google-breakpad:751 Change-Id: I850b0122324ed5f9ec747aa92ba354a3126a7ef9 Reviewed-on: https://chromium-review.googlesource.com/820711 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Remove duplicate import.Adam Harrison2017-12-051-1/+0
| | | | | | | The mac exception_handler is included in a conditional below. Change-Id: I505fad7ef6731706a39b7aaacc9a948800fc3069 Reviewed-on: https://chromium-review.googlesource.com/809306 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Make iterator string types match map container string typesMike Wittman2017-12-011-2/+2
| | | | | | | | | Fixes a compilation error when ::string != std::string. Bug: Change-Id: Ifa782da65dd08973de1fc4215f658c798ae5160b Reviewed-on: https://chromium-review.googlesource.com/802324 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Add optional field indicating multiple symbols at an addressMike Wittman2017-11-2911-144/+310
| | | | | | | | | | | | | | | | | | Adds an optional 'm' as the first field in FUNCTION and PUBLIC records to indicate that the address corresponds to more than one symbol. Controls this by a command line flag for now to give symbol file users a chance to update. Also reduces the number of IDiaSymbols retained in memory to one per address. This reduces memory consumption by 8% when processing chrome.dll.pdb. Updates the processor to parse the new optional field. Bug: google-breakpad:751 Change-Id: I6503edaf057312d21a1d63d9c84e5a4fa019dc46 Reviewed-on: https://chromium-review.googlesource.com/773418 Reviewed-by: Mark Mentovai <mark@chromium.org>
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